Logic as a tool a guide to formal logical reasoning od Goranko, Valentin

Modal logic for philosophers od Garson, James W. 1943-

Elements of logic an integrative approach od Maboloc, Christopher Ryan B., Pascua, Edgar B. II

Teaching and learning logic (critical thinking) od Joven, Jose R.

Logic demystified od Boutelle, Anthony

Selected chpaters for the power of logic od Howard-Snyder, Frances

Logic towards critical thinking and reasoning od Ardales, Venancio B.

Logic towards critical thinking and reasoning od Ardales, Venancio B.

How to think logically od Seay, Gary, Nuccetelli, Susana

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Introduction to logic od Copi, Irving M.